11451252142 has 16 divisors (see below), whose sum is σ = 18747613872. Its totient is φ = 5202558720.

The previous prime is 11451252103. The next prime is 11451252143. The reversal of 11451252142 is 24125215411.

It is a super-2 number, since 2×11451252142² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11451252142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451252143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81603 + ... + 171934.

It is an arithmetic number, because the mean of its divisors is an integer number (1171725867).

Almost surely, 2^11451252142 is an apocalyptic number.

11451252142 is a deficient number, since it is larger than the sum of its proper divisors (7296361730).

11451252142 is a wasteful number, since it uses less digits than its factorization.

11451252142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255603.

The product of its digits is 3200, while the sum is 28.

Adding to 11451252142 its reverse (24125215411), we get a palindrome (35576467553).

The spelling of 11451252142 in words is "eleven billion, four hundred fifty-one million, two hundred fifty-two thousand, one hundred forty-two".